Door-roller



' (Mo-del.)

' J. L. RYNO. Door Roller.

No. 237,910. Patented Feb. 15,1881.

UNITED STATES PATENT OFFICE.

JOHN L. RYNO, OF FARMER VILLAGE, NEW YORK.

DOOR-ROLLER.

SPECIFICATION forming part of Letters Patent No. 237,910, dated February15, 1881. Application filed November 16, 1880. (ModeL) .To all whom itmay concern Be it known that I, JOHN L. RYNO, of Farmer Village, in thecounty of Seneca, and in the State of New York, have invented certainnew and useful Improvements in Door-Rollers;

and I do hereby declare that the following is a full, clear, and exactdescription thereof, reference being bad to the accompanying drawings,and to the letters of reference marked thereon, making a part of thisspecification.

This invention relates to certain improvements in door-rollers; and ithasforits objects to provide a roller that can be cheaply constructed ofcast metal, and which will possess great strength, while at the sametime it will be exceedingly light. These objects I attain by the deviceillustrated in the accompanying drawings, in which v Figure 1 representsan elevation of my improved roller, and Fig. 2 a sectional view of thesame.

The letter A indicates the roller, which is constructed in two parts, ab. The part a consists of a disk of metal formed with a rim or flange,c, on one side, which forms the tread of the roller. The said disk to isalso constructed with a hub at its center which has tapering opening 61,for the purpose more fully hereinafter described. The part 7) alsoconsists of a cast-metal disk, which is formed with a flange, 0, adaptedto fit within the flange c of the disk a. At the center the disk b isformed with a frustum-shaped boss, the end of which is adapted to set inthe conical opening of the hub at the center of the disk at.

The letter 9 indicates a screwbolt, which passes through a cup, h,fitting against the outer end of the hub of the disk to, and through acentral opening in the disk b, by means of which the two parts of theWheel may be securely held together, an ordinary screw-nut being securedon the threaded end of the bolt.

As constructed, it will be perceived that each part of the wheel can bereadily cast in molds of two parts, without cores, rendering the deviceexceedingly cheap, while the parts can be so firmly secured together asto impart the greatest possible strength to the roller.

Having thus described my invention, What I claim, and desire to secureby Letters Patent is- An improved door-roller, consisting of two disksprovided with engaging-flanges near their periphery, one flange formingthe rollertread, and the two disks, when connected, the

. side flanges of the roller, one of the disks being provided with acentral hub extending into a central opening in the other, and abolt-connection, whereby the two disks may be secured together,substantially as specified.

In testimony that I claim the foregoing I have hereunto set my hand this1st day of November, 1880.

JOHN L. RYNO.

Witnesses 0. G. WHEELER, D. 0. WHEELER.

